// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

const functions = require("firebase-functions");

// // Create and Deploy Your First Cloud Functions
// // https://firebase.google.com/docs/functions/write-firebase-functions
//
// exports.helloWorld = functions.https.onRequest((request, response) => {
//   functions.logger.info("Hello logs!", {structuredData: true});
//   response.send("Hello from Firebase!");
// });

exports.addNumbers = functions.https.onCall((data) => {
  const firstNumber = data.firstNumber;
  const secondNumber = data.secondNumber;

  if (!Number.isFinite(firstNumber) || !Number.isFinite(secondNumber)) {
    throw new functions.https.HttpsError(
        "invalid-argument",
        "The function must be called with " +
        "two arguments \"firstNumber\" and \"secondNumber\" " +
        "which must both be numbers.");
  }

  return {
    firstNumber: firstNumber,
    secondNumber: secondNumber,
    operator: "+",
    operationResult: firstNumber + secondNumber,
  };
});
